Obesity and overweight has become a serious health issue worldwide and require some medical intervention to overcome this problem. It has been found that an unhealthy lifestyle is a major cause of obesity worldwide.  The problem of obesity and overweight has become a serious health threat to the children because of their habit in the technologically advanced world. The current study has been done on the student of age group between the 9 to 16 years. The corporation and private school have been selected for the study in the Delhi, Capital of India. The main basis for the study is the socio economic back ground of the student as the student with Lower socio economic status (LSES) have been studied in corporation school generally and on the other hand, student with upper socio economic status have studied in the private school where fee structure is quite high in comparison to corporation school .In the study,it had been found that the life style of the student is the main input to make them obese and overweight.